Vinyl Sulphone Dyes

This type of reactive dye possesses VS (Vinyl Sulphone) as its reactive group. These dyes react chemically with the hydroxyl group of cellulose and form firm, covalent linkages in the presence of Alkali. The best thing about this type of dyes is that they are versatile enough to suit different dyeing methods.

The result of these dyes is excellent and the shades come brilliant and clean, without producing any variations in dyeing or printing. The dyeing methods can be classified under the exhaust and padding processes, however standing baths are not recommended.

Main features of VS dyes are as follows:-

• They are dischargeable, have excellent brightness & possess good wet fastness.
• They are suitable for different pad dyeing methods, exhaust & discharge printing.
• They offer ease of washing off unfixed dyestuffs, which means that there would be minimum staining of the white ground in printing.
• They are applicable at 40^oC & 60^oC

	Re. Yellow GR*	Re. Yellow 15	H	100	G	4-5	5	5	5	1	+	+	+	+	(+)
						5
	Re. Yellow H7GL*	Re. Yellow 57	H	200	G	5	5	5	5	5	+	+	+	+	+
	Re. Yellow RTN	Re. Yellow 24
	Re. Yellow FG	Re. Yellow 42	L	100	G	4	5	5	5	1	(+)	+	+	+	+
						5
	Re. Yellow R	Re. Yellow 77
	Re. Golden Yellow RNL*	Re. Orange 107	M	100	G	4-5	4-5	5	5	1	+	+	+	+	+
						5
	Re. Golden Yellow R	Re. Yellow 201
	Re. Orange 2R	Not Indexed
	Re. Orange 3R*	Re. Orange 16	H	100	G	5	4-5	4-5	4-5	1	+	-	+	+	+
						6
	Re. Brilliant Red BB	Re. Red 21
	Re. Red 5B	Re. Red 35	L	100	G	3-4	5	5	5	1	(+)	+	+	+	+
						4
	Re. Red C2G	Re. Red 106	L	100	G	3-4	5	5	5	1	(+)	+	+	+	+
						4
	Re. Red RB 133%	Re. Red 198	H	100	F	2	4	5	5	1	+	+	+	+	(+)
						3
	Re. Brown GR	Re. Brown 18	M	80	G	5-6	5	5	5	1	+	+	+	+	+
	Re. Violet 5R 140%*	Re. Violet 5	M	100	P	3	4	5	5	2	+	+	+	+	(+)
						4
	Re. Blue 3R*	Re. Blue 28	H	100	G	6	4-5	4-5	4-5	3	+	+	+	+	+
						7
	Re. Dark Blue HR	Re. Blue 89
	Re. Navy Blue GG*	Re. Blue 203	VH	100	G	5-6	4-5	5	5	1	+	+	+	+	+
						6
	Re. Brilliant Blue BB	Re. Blue 220	H	100	G	6-7	4	4	4	3	+	+	+	+	+
						7
	Re. Navy Blue RGB*	Re. Blue 250
	Re. Turq. Blue G 133%*	Re. Blue 21	H	100	P	6	4-5	4-5	4-5	3	+	+	+	+	+
						7
	Re. Turq. Blue H2GP	Re. Blue 77
	Re. Black B 150%*	Re. Black 5	VH	100	G	4	5	5	5	1	+	+	+	+	+
						5

*Also available in salt free variants.

Key to Abbreviations :
Affinity / Substantivity on Cotton		Dischargeability :
L :	Low	G :	Good	+	Suitable
M :	Medium	M :	Medium	(+)	Fairly Suitable
H :	High	F :	Fair	–	Not suitable
VH :	Very High	P :	Poor

Fastness Properties:  1 to 8 in increasing order